[Android] XF migration causing thread starvation (or something?))

[roubachof]

I have a big app running on a android device with tons of views.
On XF it was slow, on MAUI it seems faster, but only when all the views are constructed, during the constructions of the views it takes forever. And it seems the UI thread is just doing nothing for a long period of time.
Here is the comparison of android studio cpu profiling:

This is the XF version:

This is the maui version:

On XF we can see the dispatchMessage is short and some work is done each time.

On MAUI the dispatchMessage last forever and seem to be doing nearly nothing..

Is it something weird or maybe the way the looper and handlers are used in MAUI changed a lot compared to XF?

[roubachof]

created an issue here: #20739